<template>
  <div class="app-container">
    <!--表单-->
    <el-form :inline="true" class="demo-form-inline">
      <el-form-item>
        <el-select v-model="searchObj.type" clearable placeholder="请选择">
          <el-option label="全部数据统计" value="all" />
          <el-option label="学员登录数统计" value="login_num" />
          <el-option label="学员注册数统计" value="register_num" />
          <el-option label="课程播放数统计" value="video_view_num" />
          <el-option label="每日课程数统计" value="course_num" />
        </el-select>
      </el-form-item>

      <el-form-item>
        <el-date-picker
          v-model="searchObj.begin"
          type="date"
          placeholder="选择开始日期"
          value-format="yyyy-MM-dd"
        />
      </el-form-item>
      <el-form-item>
        <el-date-picker
          v-model="searchObj.end"
          type="date"
          placeholder="选择截止日期"
          value-format="yyyy-MM-dd"
        />
      </el-form-item>
      <el-button
        :disabled="btnDisabled"
        type="primary"
        icon="el-icon-search"
        @click="showChart()"
        >查询</el-button
      >
    </el-form>

    <div class="chart-container">
      <br />
      <div id="chart" class="chart" style="height: 500px; width: 100%" />
    </div>
  </div>
</template>
<script>
import * as echarts from "echarts";
import sta from "@/api/sta";
export default {
  data() {
    return {
      searchObj: {
        type: "",
        begin: "",
        end: "",
      },
      btnDisabled: false,
      chart: null,
      title: "",
      xAxis: [],
      legend: [],
      series: [],
      yAxis: [],
    };
  },
  methods: {
    showChart() {
      this.$message({
        type: "info",
        message: "正在统计生成",
      });
      this.btnDisabled = true;
      this.initChartData();
    },

    // 准备图表数据
    initChartData() {
      sta.getChartData(this.searchObj).then((response) => {
        console.log(response.data)
        // console
        this.xAxis = response.data.dataMap.xAxis;
        this.legend = response.data.dataMap.legend;
        this.series = response.data.dataMap.series;
        this.yAxis = response.data.dataMap.yAxis;
        this.setChart();
        this.$message({
          type: "success",
          message: "统计生成成功",
        });
        this.btnDisabled = false;
      });
    },

    // 设置图标参数
    setChart() {
      // 基于准备好的dom，初始化echarts实例
      this.chart = echarts.init(document.getElementById("chart"));
      // console.log(this.chart)

      // 指定图表的配置项和数据
      var option = {
        dataZoom: [{
  show: true,
  height: 25,
  xAxisIndex: [
    0
  ],
  bottom: 20,
  start: 10,
  end: 80,
  handleIcon: 'path://M306.1,413c0,2.2-1.8,4-4,4h-59.8c-2.2,0-4-1.8-4-4V200.8c0-2.2,1.8-4,4-4h59.8c2.2,0,4,1.8,4,4V413z',
  handleSize: '110%',
  handleStyle: {
    color: '#d3dee5'

  },
  textStyle: {
    color: '#fff'
  },
  borderColor: '#90979c'
},
{
  type: 'inside',
  show: true,
  height: 15,
  start: 1,
  end: 35
}],
        title: {
          text: "数据统计表",
        },
        tooltip: {
          trigger: "axis",
          axisPointer: {
            type: "cross",
            crossStyle: {
              color: "#999",
            },
          },
        },
        toolbox: {
          feature: {
            dataView: { show: true, readOnly: false },
            magicType: { show: true, type: ["line", "bar"] },
            restore: { show: true },
            saveAsImage: { show: true },
          },
        },
        legend: {
          data: this.legend,
        },
        xAxis: this.xAxis,
        yAxis: this.yAxis,
        series: this.series,
      };
      
      this.chart.setOption(option, true);
    },
  },
};
</script>